Without delay, let's solve this. We've got 764 and we will be multiplying it by 401, that is, adding 764 to itself 401 times.
Step 1: 0 + 764 = 764
Step 2: 764 + 764 = 1528
Step 3: 1528 + 764 = 2292
Step 4: 2292 + 764 = 3056
Step 5: 3056 + 764 = 3820
Step 6: 3820 + 764 = 4584
Step 7: 4584 + 764 = 5348
Step 8: 5348 + 764 = 6112
Step 9: 6112 + 764 = 6876
Step 10: 6876 + 764 = 7640
Step 11: 7640 + 764 = 8404
Step 12: 8404 + 764 = 9168
Step 13: 9168 + 764 = 9932
Step 14: 9932 + 764 = 10696
Step 15: 10696 + 764 = 11460
Step 16: 11460 + 764 = 12224
Step 17: 12224 + 764 = 12988
Step 18: 12988 + 764 = 13752
Step 19: 13752 + 764 = 14516
Step 20: 14516 + 764 = 15280
Step 21: 15280 + 764 = 16044
Step 22: 16044 + 764 = 16808
Step 23: 16808 + 764 = 17572
Step 24: 17572 + 764 = 18336
Step 25: 18336 + 764 = 19100
Step 26: 19100 + 764 = 19864
Step 27: 19864 + 764 = 20628
Step 28: 20628 + 764 = 21392
Step 29: 21392 + 764 = 22156
Step 30: 22156 + 764 = 22920
Step 31: 22920 + 764 = 23684
Step 32: 23684 + 764 = 24448
Step 33: 24448 + 764 = 25212
Step 34: 25212 + 764 = 25976
Step 35: 25976 + 764 = 26740
Step 36: 26740 + 764 = 27504
Step 37: 27504 + 764 = 28268
Step 38: 28268 + 764 = 29032
Step 39: 29032 + 764 = 29796
Step 40: 29796 + 764 = 30560
Step 41: 30560 + 764 = 31324
Step 42: 31324 + 764 = 32088
Step 43: 32088 + 764 = 32852
Step 44: 32852 + 764 = 33616
Step 45: 33616 + 764 = 34380
Step 46: 34380 + 764 = 35144
Step 47: 35144 + 764 = 35908
Step 48: 35908 + 764 = 36672
Step 49: 36672 + 764 = 37436
Step 50: 37436 + 764 = 38200
Step 51: 38200 + 764 = 38964
Step 52: 38964 + 764 = 39728
Step 53: 39728 + 764 = 40492
Step 54: 40492 + 764 = 41256
Step 55: 41256 + 764 = 42020
Step 56: 42020 + 764 = 42784
Step 57: 42784 + 764 = 43548
Step 58: 43548 + 764 = 44312
Step 59: 44312 + 764 = 45076
Step 60: 45076 + 764 = 45840
Step 61: 45840 + 764 = 46604
Step 62: 46604 + 764 = 47368
Step 63: 47368 + 764 = 48132
Step 64: 48132 + 764 = 48896
Step 65: 48896 + 764 = 49660
Step 66: 49660 + 764 = 50424
Step 67: 50424 + 764 = 51188
Step 68: 51188 + 764 = 51952
Step 69: 51952 + 764 = 52716
Step 70: 52716 + 764 = 53480
Step 71: 53480 + 764 = 54244
Step 72: 54244 + 764 = 55008
Step 73: 55008 + 764 = 55772
Step 74: 55772 + 764 = 56536
Step 75: 56536 + 764 = 57300
Step 76: 57300 + 764 = 58064
Step 77: 58064 + 764 = 58828
Step 78: 58828 + 764 = 59592
Step 79: 59592 + 764 = 60356
Step 80: 60356 + 764 = 61120
Step 81: 61120 + 764 = 61884
Step 82: 61884 + 764 = 62648
Step 83: 62648 + 764 = 63412
Step 84: 63412 + 764 = 64176
Step 85: 64176 + 764 = 64940
Step 86: 64940 + 764 = 65704
Step 87: 65704 + 764 = 66468
Step 88: 66468 + 764 = 67232
Step 89: 67232 + 764 = 67996
Step 90: 67996 + 764 = 68760
Step 91: 68760 + 764 = 69524
Step 92: 69524 + 764 = 70288
Step 93: 70288 + 764 = 71052
Step 94: 71052 + 764 = 71816
Step 95: 71816 + 764 = 72580
Step 96: 72580 + 764 = 73344
Step 97: 73344 + 764 = 74108
Step 98: 74108 + 764 = 74872
Step 99: 74872 + 764 = 75636
Step 100: 75636 + 764 = 76400
Step 101: 76400 + 764 = 77164
Step 102: 77164 + 764 = 77928
Step 103: 77928 + 764 = 78692
Step 104: 78692 + 764 = 79456
Step 105: 79456 + 764 = 80220
Step 106: 80220 + 764 = 80984
Step 107: 80984 + 764 = 81748
Step 108: 81748 + 764 = 82512
Step 109: 82512 + 764 = 83276
Step 110: 83276 + 764 = 84040
Step 111: 84040 + 764 = 84804
Step 112: 84804 + 764 = 85568
Step 113: 85568 + 764 = 86332
Step 114: 86332 + 764 = 87096
Step 115: 87096 + 764 = 87860
Step 116: 87860 + 764 = 88624
Step 117: 88624 + 764 = 89388
Step 118: 89388 + 764 = 90152
Step 119: 90152 + 764 = 90916
Step 120: 90916 + 764 = 91680
Step 121: 91680 + 764 = 92444
Step 122: 92444 + 764 = 93208
Step 123: 93208 + 764 = 93972
Step 124: 93972 + 764 = 94736
Step 125: 94736 + 764 = 95500
Step 126: 95500 + 764 = 96264
Step 127: 96264 + 764 = 97028
Step 128: 97028 + 764 = 97792
Step 129: 97792 + 764 = 98556
Step 130: 98556 + 764 = 99320
Step 131: 99320 + 764 = 100084
Step 132: 100084 + 764 = 100848
Step 133: 100848 + 764 = 101612
Step 134: 101612 + 764 = 102376
Step 135: 102376 + 764 = 103140
Step 136: 103140 + 764 = 103904
Step 137: 103904 + 764 = 104668
Step 138: 104668 + 764 = 105432
Step 139: 105432 + 764 = 106196
Step 140: 106196 + 764 = 106960
Step 141: 106960 + 764 = 107724
Step 142: 107724 + 764 = 108488
Step 143: 108488 + 764 = 109252
Step 144: 109252 + 764 = 110016
Step 145: 110016 + 764 = 110780
Step 146: 110780 + 764 = 111544
Step 147: 111544 + 764 = 112308
Step 148: 112308 + 764 = 113072
Step 149: 113072 + 764 = 113836
Step 150: 113836 + 764 = 114600
Step 151: 114600 + 764 = 115364
Step 152: 115364 + 764 = 116128
Step 153: 116128 + 764 = 116892
Step 154: 116892 + 764 = 117656
Step 155: 117656 + 764 = 118420
Step 156: 118420 + 764 = 119184
Step 157: 119184 + 764 = 119948
Step 158: 119948 + 764 = 120712
Step 159: 120712 + 764 = 121476
Step 160: 121476 + 764 = 122240
Step 161: 122240 + 764 = 123004
Step 162: 123004 + 764 = 123768
Step 163: 123768 + 764 = 124532
Step 164: 124532 + 764 = 125296
Step 165: 125296 + 764 = 126060
Step 166: 126060 + 764 = 126824
Step 167: 126824 + 764 = 127588
Step 168: 127588 + 764 = 128352
Step 169: 128352 + 764 = 129116
Step 170: 129116 + 764 = 129880
Step 171: 129880 + 764 = 130644
Step 172: 130644 + 764 = 131408
Step 173: 131408 + 764 = 132172
Step 174: 132172 + 764 = 132936
Step 175: 132936 + 764 = 133700
Step 176: 133700 + 764 = 134464
Step 177: 134464 + 764 = 135228
Step 178: 135228 + 764 = 135992
Step 179: 135992 + 764 = 136756
Step 180: 136756 + 764 = 137520
Step 181: 137520 + 764 = 138284
Step 182: 138284 + 764 = 139048
Step 183: 139048 + 764 = 139812
Step 184: 139812 + 764 = 140576
Step 185: 140576 + 764 = 141340
Step 186: 141340 + 764 = 142104
Step 187: 142104 + 764 = 142868
Step 188: 142868 + 764 = 143632
Step 189: 143632 + 764 = 144396
Step 190: 144396 + 764 = 145160
Step 191: 145160 + 764 = 145924
Step 192: 145924 + 764 = 146688
Step 193: 146688 + 764 = 147452
Step 194: 147452 + 764 = 148216
Step 195: 148216 + 764 = 148980
Step 196: 148980 + 764 = 149744
Step 197: 149744 + 764 = 150508
Step 198: 150508 + 764 = 151272
Step 199: 151272 + 764 = 152036
Step 200: 152036 + 764 = 152800
Step 201: 152800 + 764 = 153564
Step 202: 153564 + 764 = 154328
Step 203: 154328 + 764 = 155092
Step 204: 155092 + 764 = 155856
Step 205: 155856 + 764 = 156620
Step 206: 156620 + 764 = 157384
Step 207: 157384 + 764 = 158148
Step 208: 158148 + 764 = 158912
Step 209: 158912 + 764 = 159676
Step 210: 159676 + 764 = 160440
Step 211: 160440 + 764 = 161204
Step 212: 161204 + 764 = 161968
Step 213: 161968 + 764 = 162732
Step 214: 162732 + 764 = 163496
Step 215: 163496 + 764 = 164260
Step 216: 164260 + 764 = 165024
Step 217: 165024 + 764 = 165788
Step 218: 165788 + 764 = 166552
Step 219: 166552 + 764 = 167316
Step 220: 167316 + 764 = 168080
Step 221: 168080 + 764 = 168844
Step 222: 168844 + 764 = 169608
Step 223: 169608 + 764 = 170372
Step 224: 170372 + 764 = 171136
Step 225: 171136 + 764 = 171900
Step 226: 171900 + 764 = 172664
Step 227: 172664 + 764 = 173428
Step 228: 173428 + 764 = 174192
Step 229: 174192 + 764 = 174956
Step 230: 174956 + 764 = 175720
Step 231: 175720 + 764 = 176484
Step 232: 176484 + 764 = 177248
Step 233: 177248 + 764 = 178012
Step 234: 178012 + 764 = 178776
Step 235: 178776 + 764 = 179540
Step 236: 179540 + 764 = 180304
Step 237: 180304 + 764 = 181068
Step 238: 181068 + 764 = 181832
Step 239: 181832 + 764 = 182596
Step 240: 182596 + 764 = 183360
Step 241: 183360 + 764 = 184124
Step 242: 184124 + 764 = 184888
Step 243: 184888 + 764 = 185652
Step 244: 185652 + 764 = 186416
Step 245: 186416 + 764 = 187180
Step 246: 187180 + 764 = 187944
Step 247: 187944 + 764 = 188708
Step 248: 188708 + 764 = 189472
Step 249: 189472 + 764 = 190236
Step 250: 190236 + 764 = 191000
Step 251: 191000 + 764 = 191764
Step 252: 191764 + 764 = 192528
Step 253: 192528 + 764 = 193292
Step 254: 193292 + 764 = 194056
Step 255: 194056 + 764 = 194820
Step 256: 194820 + 764 = 195584
Step 257: 195584 + 764 = 196348
Step 258: 196348 + 764 = 197112
Step 259: 197112 + 764 = 197876
Step 260: 197876 + 764 = 198640
Step 261: 198640 + 764 = 199404
Step 262: 199404 + 764 = 200168
Step 263: 200168 + 764 = 200932
Step 264: 200932 + 764 = 201696
Step 265: 201696 + 764 = 202460
Step 266: 202460 + 764 = 203224
Step 267: 203224 + 764 = 203988
Step 268: 203988 + 764 = 204752
Step 269: 204752 + 764 = 205516
Step 270: 205516 + 764 = 206280
Step 271: 206280 + 764 = 207044
Step 272: 207044 + 764 = 207808
Step 273: 207808 + 764 = 208572
Step 274: 208572 + 764 = 209336
Step 275: 209336 + 764 = 210100
Step 276: 210100 + 764 = 210864
Step 277: 210864 + 764 = 211628
Step 278: 211628 + 764 = 212392
Step 279: 212392 + 764 = 213156
Step 280: 213156 + 764 = 213920
Step 281: 213920 + 764 = 214684
Step 282: 214684 + 764 = 215448
Step 283: 215448 + 764 = 216212
Step 284: 216212 + 764 = 216976
Step 285: 216976 + 764 = 217740
Step 286: 217740 + 764 = 218504
Step 287: 218504 + 764 = 219268
Step 288: 219268 + 764 = 220032
Step 289: 220032 + 764 = 220796
Step 290: 220796 + 764 = 221560
Step 291: 221560 + 764 = 222324
Step 292: 222324 + 764 = 223088
Step 293: 223088 + 764 = 223852
Step 294: 223852 + 764 = 224616
Step 295: 224616 + 764 = 225380
Step 296: 225380 + 764 = 226144
Step 297: 226144 + 764 = 226908
Step 298: 226908 + 764 = 227672
Step 299: 227672 + 764 = 228436
Step 300: 228436 + 764 = 229200
Step 301: 229200 + 764 = 229964
Step 302: 229964 + 764 = 230728
Step 303: 230728 + 764 = 231492
Step 304: 231492 + 764 = 232256
Step 305: 232256 + 764 = 233020
Step 306: 233020 + 764 = 233784
Step 307: 233784 + 764 = 234548
Step 308: 234548 + 764 = 235312
Step 309: 235312 + 764 = 236076
Step 310: 236076 + 764 = 236840
Step 311: 236840 + 764 = 237604
Step 312: 237604 + 764 = 238368
Step 313: 238368 + 764 = 239132
Step 314: 239132 + 764 = 239896
Step 315: 239896 + 764 = 240660
Step 316: 240660 + 764 = 241424
Step 317: 241424 + 764 = 242188
Step 318: 242188 + 764 = 242952
Step 319: 242952 + 764 = 243716
Step 320: 243716 + 764 = 244480
Step 321: 244480 + 764 = 245244
Step 322: 245244 + 764 = 246008
Step 323: 246008 + 764 = 246772
Step 324: 246772 + 764 = 247536
Step 325: 247536 + 764 = 248300
Step 326: 248300 + 764 = 249064
Step 327: 249064 + 764 = 249828
Step 328: 249828 + 764 = 250592
Step 329: 250592 + 764 = 251356
Step 330: 251356 + 764 = 252120
Step 331: 252120 + 764 = 252884
Step 332: 252884 + 764 = 253648
Step 333: 253648 + 764 = 254412
Step 334: 254412 + 764 = 255176
Step 335: 255176 + 764 = 255940
Step 336: 255940 + 764 = 256704
Step 337: 256704 + 764 = 257468
Step 338: 257468 + 764 = 258232
Step 339: 258232 + 764 = 258996
Step 340: 258996 + 764 = 259760
Step 341: 259760 + 764 = 260524
Step 342: 260524 + 764 = 261288
Step 343: 261288 + 764 = 262052
Step 344: 262052 + 764 = 262816
Step 345: 262816 + 764 = 263580
Step 346: 263580 + 764 = 264344
Step 347: 264344 + 764 = 265108
Step 348: 265108 + 764 = 265872
Step 349: 265872 + 764 = 266636
Step 350: 266636 + 764 = 267400
Step 351: 267400 + 764 = 268164
Step 352: 268164 + 764 = 268928
Step 353: 268928 + 764 = 269692
Step 354: 269692 + 764 = 270456
Step 355: 270456 + 764 = 271220
Step 356: 271220 + 764 = 271984
Step 357: 271984 + 764 = 272748
Step 358: 272748 + 764 = 273512
Step 359: 273512 + 764 = 274276
Step 360: 274276 + 764 = 275040
Step 361: 275040 + 764 = 275804
Step 362: 275804 + 764 = 276568
Step 363: 276568 + 764 = 277332
Step 364: 277332 + 764 = 278096
Step 365: 278096 + 764 = 278860
Step 366: 278860 + 764 = 279624
Step 367: 279624 + 764 = 280388
Step 368: 280388 + 764 = 281152
Step 369: 281152 + 764 = 281916
Step 370: 281916 + 764 = 282680
Step 371: 282680 + 764 = 283444
Step 372: 283444 + 764 = 284208
Step 373: 284208 + 764 = 284972
Step 374: 284972 + 764 = 285736
Step 375: 285736 + 764 = 286500
Step 376: 286500 + 764 = 287264
Step 377: 287264 + 764 = 288028
Step 378: 288028 + 764 = 288792
Step 379: 288792 + 764 = 289556
Step 380: 289556 + 764 = 290320
Step 381: 290320 + 764 = 291084
Step 382: 291084 + 764 = 291848
Step 383: 291848 + 764 = 292612
Step 384: 292612 + 764 = 293376
Step 385: 293376 + 764 = 294140
Step 386: 294140 + 764 = 294904
Step 387: 294904 + 764 = 295668
Step 388: 295668 + 764 = 296432
Step 389: 296432 + 764 = 297196
Step 390: 297196 + 764 = 297960
Step 391: 297960 + 764 = 298724
Step 392: 298724 + 764 = 299488
Step 393: 299488 + 764 = 300252
Step 394: 300252 + 764 = 301016
Step 395: 301016 + 764 = 301780
Step 396: 301780 + 764 = 302544
Step 397: 302544 + 764 = 303308
Step 398: 303308 + 764 = 304072
Step 399: 304072 + 764 = 304836
Step 400: 304836 + 764 = 305600
Step 401: 305600 + 764 = 306364

So, 764*401 = 306364